Heating-drum



(No Model.)

J. W. JOHNSON. HEATING DRUM.

Patented Apr. 30, 1895.

WITNESSES.-

ATTORNEYS.

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Fries.

JAMES WEST JOHNSON, OF PAULLINA, IOW'A.

HEATING-DRUM.

SPECIFIGATION forming part Of Letters Patent NO. 538,519, dated April 30, 1895.

Application filed January 8, 1895- Serial No. 534,185- (No model.)

To all whom it may concern:

Be it known that I, JAMES WEST JOHNSON, of Paullina, in the county of OBrien and State of Iowa, have invented a new and Improved Heating-Drum, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved heating drum, which is comparatively simple and durable in construction, arranged to give a large heating surface and perfectcirculation for the air to be heated, at the same time retarding the smoke and gases in their discharge through the drum to insure a complete utilization of the heat.

The invention consists principally of a shell divided by partitions into air compartments and a central passage for smoke and gases, and fines held in the said partitions to open into the said compartments, the fines-being arranged in an inclined position, one at one side and somewhat above the other.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter and then pointed out in the claims. v

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the views.

Figure 1 is afront elevation of theimprovement. Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1. Fig. 3 isa plan View of the same. Fig. 4: is a sectional plan view of the same on the line 4 4 of Fig. 2, and

Fig. 5 is a perspective view of the bottom shellhead. i

The improved heating drum is provided with an exterior shell A having a bottom head B and a top head B, connected with the smoke pipes O and C respectively, the smoke pipe 0 serving to conduct the heat and gases to the heating drum, and the other pipe 0 leading the smoke and gases to the chimney or other place of discharge.

In the shell A are arranged two transverse partitions E and E, formed at their sides with flanges fastened by rivets F or other suitable means to the shell A, the said partitions forming the air compartments G and G, and a central smoke and gas passage or chamber G through which pass the smoke and gases entering by the pipe 0 and leaving the passage G? by the pipe 0.

In the partitions E and E is secured a series of fines H, arranged obliquely and located at one side, one somewhat above the other, as indicated in Fig. 2, so that the smoke and gases can pass through the passage G and still are retarded to a considerable extent, so as to insure a perfect heating of the fines and of the air circulating through the same.

In the lower head B is formed an opening B leading to the compartment G to permit the air from the room to pass into the said compartment G.

In the shell Ais arranged a series of perforations A opening into the compartment G, in which terminate the upper ends of the obliquely arranged or inclined flues H. Now it will be seen that the air near the floor of the room can readily enter thecompartment Gat the opening B and then circulate through the flues H from the compartment G to the compartment G, and finally pass through the openings A to the room. The upper ends of the partitions E and E abut against transverse fianges B and 13, formed in the heads B and B, so as to insure a gas-tight joint to prevent smoke and gases passing through the passage or chamber G from entering either of the compartments G or G.

It will be seen that by the arrangement described, a perfect circulation of the air is established. At the same time the smoke and gases, in their passage through the chamber G are somewhat retarded by the inclined flues, so that the heat is utilized to the fullest advantage, it being understood that the air in the compartments G and G, as well as the air passing through the fines is thoroughly heated before passing back into the room through the perforations A.

Having thus fully described my invention, I claim as new and desire to secure by Letters I atent- 1. A heating drum, comprising a shell provided with transverse partitions extending from top to bottom and forming two air compartments and a central smoke and gas chamber, perforations leading into one of the said compartments, an opening in one of its heads and leading into the other compartment, and fines secured tothe partitions and opening ICO into the said compartments, substantially as described.

2. A heating drum, comprising an apertured shell provided with heads, each having transverse fianges and one provided with an opening, transverse partitions secured to the sides of the shell and to the flanges of the heads, said partitions forming two air compartments and a central smoke and gas chamber, and flues secured to the partitions and opening IO into the said compartments, substantially as herein shown and described.

JAMES WEST JOHNSON. Witnesses:

JAMES LOUOKS, Geo. W. HARRIS. 

